Carburetor



July 14, 1925. Y 1,546,072

w. A. HElDE CARBURETOR Filed Oct. 1, 1919 2 Sheets-Sheet 1 amveutoz W. A. HEIDE July 14, 1925.

CARBURE'IYOR Filed-Oct. 1, 41919 2 Sheets-Sheet 2 partin Patented July 14, 1925.

UNITED STATES 1,545,072 PATENT: OFFICE.

' WILLIAM A. HEIDE, 0F DETROIT, MICHIGAN 1 CARIBURETOR.

Application filed October 1, 1919. Serial No. 327,778.

To all Q1) ham it may concern Be it known that I, VILLIAM A. Hnlnn, a citizen of the United States, residing at Detroit, in the county of lVayne and State of h Iichigan, have invented a new and useful Carburetor, of which the following is a specification.

This invention relates to carburetors particularly designed for use on aeroplanes adapted to travel at various angles and in inverted positions and also on motor boats and other structures. One of theobjects of the invention is to provide a carburetor which will operate efficiently under these various conditions A further object is to mount the fuel bowl of the carburetor in a novel manner to maintain the level oft-he fluid from the fuel practically undisturbed by the movement of the machine on which the carburetor is mounted.

With the foregoing and other objects in view, which will appear as the description proceeds, the invention consists of certain novel details of construction and combinations of parts which will be hereinafter more fully described and pointed out in the claims, it being understood that various changes may be made in the construction and arrangement of the parts without deg from the spirit or sacrificing any of the advantages of the invention.

In the accompanying drawings the preferred form of the invention has been shown.

In said drawings- Figure 1 is a plan view of the carburetor and parts connected thereto, a portion being shown in section.

Fig. 2 is a section on line 2-2, Fig. 1 showing one of the trunnions of the carbure-tor.

Fig. 3 is a section through a portion of the carburetor showing another one of the trunnions.

Fig. at is a section on line t4, Fig. 2.

Referring to the figures by characters of reference 1 designates a holding structure, preferably in the form of a yoke, as shown, and adapted to be bolted or otherwise fixedly connected to the aeroplane or other structure in which the carburetor is to be mounted. This supporting structure is provided at one end with a boss 2 in which is secured a bearing sleeve 3 held in place by screws 1 or the like, there being a passage 5 extending through the sleeve for the, reception of one end of a fuel supply pipe 6. A packing gland 7 is provided at the other end of the sleeve and extends around a tubular trunnion 8 projecting from the center of one end of a frame 9. Another tubular trunnion extends from the other end of the frame 9 and is mounted for rotation within the outer end portion of a stepped bore 10. This trunnion has been indicated at 11 and surrounds and is spaced from a tube 12 which extends beyond both ends of the trunnion 11 into the frame 9 and into the bore 10. A third tube is within and spaced from the tube 12, as shown at 13 and projects beyond both ends of said tube-12, and a fourth tube 14 is within and spaced from the tube 1.3 and projects beyond both ends thereof. All of these tubes 11, 12, 13

and let are concentric and those ends therethe ends of the respective tubes 11, 13 and 14 so asto open into said tubes atall times and irrespective of the rotation of the tubes within the block 19. Ineach of the pas sages 24, 25 and 26 is arranged a needle valve 28 adapted to control the flow of air through the ports 23.

The bowl 49 of thecarburetor is arranged within the frame 9 and has oppositely ex tending trunnions 50 and 51 on the top thereof and journaled in the sides of tl e frame 9. The trunnion 50 is connected by a pipe 52 to the passage 53 in frame 9 and which opens into the trunnion 8. Trun nion 50 has a passage 5 1 therein which opens into the top of the bowl 49 and the end of this passage is adapted to be closed by a valve 55 carried by a float 56 within the bowl. This float is pivotally supported by a link 57 connected to a bracket 58 within the bowl and when the level of the gasoline in the bowl reaches a predetermined point, the valve will be closed by the float.

The tubulartrunnion 51 is provided therein with concentric tubes 59, 50 and 61 which are spaced apart and of different lengths, each of said tubes being provided with a packing 62 carried by a collar 63, the collars on the seve al tubes being connected together to form chambers therebetween into which the respective tubes open. These chambers have been indicated at 64. Tubes 65 connect these chambers with the respective passages 15, 16, 17 and 18. I 7

Those ends of the tubes 59, 60 and 61 and the trunnion 51 overhanging thebowl 49 are closed and disposed in stepped relation and projectingdownwardly from them and into 'thebo'wl are parallel flat supply tubes 66 which terminate closeto the bottom o t the bowl and extend through an opening 67 formed in the float 56.

I By mounting the bowl in the manner described it-is tree to swing about the axis or" the-'trunnions and 51 and relative to the frame 9. The frames), too, is free to swing "about an axis extending through the trunnions 8 and ll. Thus the bowl will be mainained-by gravity in a horizontal'positi'on irrespective of the-angleof the structure 1 to the horizontal-and even whenlhe said structure is inverted.

The bowl 494s provided with a-weight 68 thereunderand-supported by bolts 69'the lower ends of which extend into-the side of the weight while their upper ends are fastened in cars 70 extending from thecover or" the bowl i9. Thus the bowl is maintained level under all conditions.

What is claimed is 1 1. The combination with a supporting structure, of a lrame, concentric tubular members extending from one endof the frame and rotatable therewith, one of said members constituting a trunnion of the frame, a tubular member extending from the frame andrevoluble in the support and constituting the othertrunnion of the l rame, said last mentioned tubular member constituting a fuelsupply, afloat chamber mounted to swing within the frame about an axis at right angles to the axis of the trunnions, concentric tubular'members extending from 'of the float chamber, passages connecting said concentric tubular members of the float chamber with the corresponding tubular :members of the frame, a tubular trunnion extending from the float chamber opposite the other trunnion of said chamber and supported by the frame, a passage connecting said tubular trunnion with the tuel'su-pplytrunnion, afloat operated valve for controlling the flowof fuel through said passage, and separate "tubes supported within the float chamber and communicating with the respective concentric tubular members of the float chamber. Y

'2. The combination with a supporting structure, of a frame mounted for rotation therein, oppositely extending tubular trunnions onthe frame journaled' in'the structure, one of said trunnions constituting a fuel intake and the other trunnion constituting a fuel outlet, a self leve ling 'float chamber supported within the frame and mounted for rotation about an axis-at right members spaced from and concentric with p the tubular "fuel outlet trunnion of the frame, passages con'nectii'igthe concentricv .WILLIAM -AJ HEIDE. 

